Arachne

Arachne is a woman with the body of a spider based of mythology, much like Lamia and Medusa. She is normally aggressive and sends her babies to attack. She is a boss in Madou Monogatari: Hanamaru Dai Youchienji, living inside the stomach of a large fish.

Behemoth

Behemoth is a cow-based woman that is the final of the three exclusive bosses in Madou
Monogatari I Honoo No Sotsuenji before Fudoushi and rightfully one of the most difficult. That reason being that she mesmerizes Arle with a dance before attacking, which can be quite difficult for some players to deal with.

After defeat, Behemoth runs off in humiliation that she was beaten by a child.

Trivia

Japanese fans find her similar to Rulue; she carries around a fan, has a "noblewoman's laugh", and is a skilled fighter rather than relying on magic powers. Others think she is also highly like Minotauros as they are both humanoid cows, or possibly a combination of the two characters.

He has a constant rivalry and also a possible love interest with Arle.

Dog Men

Dog Men, known as Noru in the MSX version, are creatures with the body of a man and head of a dog (the direct opposite of Scylla) that carry around a sword.

Dullahan

Dullahan is a sword-wielding warrior who's head falls off occasionally and claims to have
a beautiful neck. In the PC98 version of Madou Monogatari 3, Dullahan is decapitated and covered in blood when low on health or dead, a similar fate to Schezo. In Madou Monogatari: Hanamaru Dai Youchienji however, there is no blood possibly due the game aimed toward children.

Fudoshi

Fudoushi is a rotting magic guru who can enlarge and shrink himself. He the final boss of Madou Monogatari 1(after defeating Cockatrice in the gamegear version) and creates a hideous illusion of Arle's kindergarten friends melting into hideous figures like Mini Zombie. However, inn Madou Monogatari: Hanamaru Dai Youchienji he is portrayed as a goofy character with attitude and possessed by Devil for his power.

He first appeared in the PC98 version in replacement of Mamono, and was used in the later remakes with new abilities such as being able to change his size or poison the player. Due to him being more frightening looking, this may be the reason he had never appeared in the actual Puyo Puyo games.

It's unknown if he was always a monster, or was once a human wizard and worked at the school with Teacher.

Garuda

Garuda is a demonic bird that shouts an ear-shrilling screech when encountered or defeated. The black blood that drips from its mouth that belongs to Lamia. When Lamia loses, Garuda appears from the shadows and devours her body.

Most likely for being unsuitable for younger audiences, in the Gamegear version it was changed a humanoid bird that appears at random like all enemies and sheds it feathers in defeat. It still can appear when Lamia is in critical condition at times however.

Gay

Gay is a homosexual, crossdressing whale (pronounced like the Japanese kanji 鯨 (gei), means whale).

Gem Guardians

Yellow Diamond is immune to "Lightning" and her expression is sad. Red Ruby is immune to "Fire" and appears mischievous. Blue Sapphire is immune to "Ice Storm" and is indifferent. Green Emerald is immune to "Jugemo" appears to be regularly happy.

Gorgon

Gorgon is a cow-based creature with devil wings and a bell around it's neck in the MSX version of Madou Monogatari 2. Despite its name is based from the snake-haired female creature in Greek mythology, in no way does it resemble that creature. It also appears masculine instead of female.

This is not to be confused with the Puyo Puyo!! Quest-exclusive character Gorgon, who actually resembles the mythological creature.

Hanzo

Hanzo (sometimes referred to as Hattori Hanzo or Hanzo Bluff) is first of the three exclusive bosses in Madou Monogatari I Honoo No Sotsuenji. When Arle first encounters him, Hanzo seems to be nervous about fighting her, but bluffs and says that he will defeat Arle. Despite his confidence, he is defeated in a single hit, making the battle with him a complete joke.

Afterwards, Arle points out how pathetic that battle was, making him embarrassed.

Headmaster

Headmaster is the principal of Arle's school in Madou Monogatari: Hanamaru Dai Youchienji. In one point of the game he is possessed by Devil and freezes everyone in the school into statues except Arle. When Devil escapes, he rewards Arle with the Magical Dictionary, which can be used to read gold plaques.

Koumorigyaru

Koumorigyaru is a humanoid bat woman in the MSX version of Madou Monogatari 1, who has a constant habit of laughing, teasing, or complaining.

Kurogga

Kurogga is a frog with the stomach of a clock-bomb. He has only appeared in the MSX version of Madou Monogatari 1 and no other games since there on.

Lala

Lala is a girl who is madly in love and obsessed with Camus in Madou Monogatari: Genesis. Throughout the tower she pops up at random times, mostly when Camus is around and chases him.

She hasn't appeared in any other games since Madou Monogatari: Final Exam.

Lamia

Lamia is a demon woman with the lower-half of a snake. She may appear cute or attractive at first, but she can gets vicious quick. She kills and seduces young men with a poisonous bite.

In the Gamegear and PC98 versions of Madou Monogatari 2, once she is defeated or in danger, Garuda will come in and eat her, greeting with a terrible screech.

In Madou Monogatari she has snakes for hair, same as Medusa. While in the MSX version of Madou Monogatari 2, she looks like a normal girl just in a lizard suit.

Lulba

Lulba is the main antagonist of Wizard Lulba (also known as Madoushi Raruba, the spiritual prequel to the Madou Monogatari series), who appears also in Schezo's story of Madou Monogatari: ARS.

Lynx

The Lynx is a cat who wraps his tail around his body normally. In the gamegear version of Madou Monogatari 2 he flees from a battle with Arle luring her to Schezo.

In MSX, he appears more like a persian, while in the PC98 version, he's furry and vicious looking more like a lion than a cat.

Medusa

Medusa is a woman based off Greek mythology with snakes for hair which falls off when she's defeated in the gamegear version of Madou Monogatari 2. One of the character able to poison Arle along with Lamia. Lamia also uses her hairstyle in Madoh Monogatari.

Phantom God

Phantom God is the final boss of Madou Monogatari: Final Exam, after you defeat all of the Gem Guardians.

He has two forms, one appearing calm and peaceful, the other dark and hideous.

Rot

Human (PC98)

Human (Madou Monogatari I Honoo No Sotsuenji)

Flying Fish

Dragon

Rot are numerous kinds of creatures that appear in the Madou Monogatari series. Dragon, Human, and Flying Fish are three kinds of them(mostly only appearing in the PC98 version). Sapropel Insects tend to feed off the rotting people unlike the other two.

Fudoushi, Test Body, and Wight are also types of rot, but actual characters instead of various species. Zombie and Mini Zombie also partially qualify.

Sapropel Insects

Sapropel Insects are parasites that live inside of People Rot feeding off of them, they crawl out to fight once the flesh is defeated.

In the PC98 of Madou Monogatari 1 they appear like real parasites/larvae, while in the PC Engine version they have worm bodies with human heads.

Siren

MSX2

MSX2

PC98

ARS

Siren is a mystical woman with a bad singing voice believing it's good much like Harpy. She carries around a small grey bottle in her hand in the gamegear version of Madou Monogatari 2. Upon defeat, she will release a horrible screech, much like Garuda.

Skeleton D

Skeleton D is the twin brother of Skeleton T from Madou Monogatari: Hanamaru Dai Youchienji. Instead of a calm tea-lover like his brother, he is an energetic alcoholic. He has not appeared in any other games since.

In said game he appeared in, he is an imposter of one of the Old Village people claiming that he was stealing vegetables out of sheer boredom. He can swig his beer to get health back and has an ice move identical to Arle's.

Test Body

The Test Body is an experimental body who's flesh is rooted to the exit of Schezo's dungeon in the PC98 version of Madou Monogatari 2. It's purposes are unknown other than keeping Arle from leaving. It is possible that the victims of Schezo, after their powers have been taken, were fed to it.

Tyranno

Tyranno, short for Tyrannosaurus, is a vicious but surprisingly not that large of a dinosaur. It only appears in the MSX version of Madou Monogatari 2, appearing with a loud roar.

Wish

Wish is a witch that appears in Madou Monogatari: Tower of the Magician and appears as a supporting character for Schezo. She is Witch's grandmother and looks very much like her, except she has longer, silvery hair, and a darker shade of blue clothing.

She is also possessed by Dark Matter for the final battle of the game, making her not to dissimilar to Satan, Klug and even Arle, all of whom have suffered similar fates.

Her name, in addition to implying her supposedly benevolent personality, may also be a pun on the Japanese pronunciation of "Witch".